# Claude Opus 4.6 vs GPT-5.6 Sol

As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in 4 of 6 shared categories: General LLM, Reasoning, Long context, and Factuality.

Claude Opus 4.6: $10 per 1M blended tokens.

GPT-5.6 Sol: $8.000000000000002 per 1M blended tokens.

Claude Opus 4.6: closed weights.

GPT-5.6 Sol: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in General LLM at #4 against #17.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in Reasoning at #2 against #12.
- Which to pick, Science: As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 4.6 in Science at #13 against #32.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 4.6 in Coding › Web dev at #23 against #37.
- Which to pick, Long context: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in Long context at #2 against #13.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in Factuality at #3 against #15.

As of Oct 15, 2026, Claude Opus 4.6 is near state of the art, rank #2 in Reasoning (since Oct 15, 2026; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).

As of Oct 15, 2026, GPT-5.6 Sol is near state of the art, rank #3 in Vision (since Oct 15, 2026; sources GDP.pdf; methodology v1.0).